code: def stack_fn(x):
      x = stack1(x, 64, 3, name="conv2")
      x = stack1(x, 128, 4, name="conv3")
      x = stack1(x, 256, 6, name="conv4")
      return stack1(x, 512, 3, name="conv5")
  
file_path: deepface/deepface/basemodels/ArcFace.py
imports: import os
  import gdown
  import tensorflow
  from deepface.commons import functions
  from deepface.commons.logger import Logger
label_desc: Use image node_id 5 for calling a global function with example usage: stack_fn(x) and returns: stack1